. >> richard nixon said when he went to china with you, of course, in '72, the week that he was there, he said this is the week that changed the world. >> he was right. >> well, those were some of the tough decisions we wanted to analyze. do you agree with the choices these people made? what are the toughest decisions you have made? join in the conversation online #toughdecisions on twitter. we'll highlight the most interesting ones on our website. thank you for joining us tonight. we hope your decision to watch our show was not a tough one. >>> it's extremely unlikely in my estimation that david gregory is going to jail. but the "meet the press" moderator is under investigation for wielding this particular prop during an interview with the head of the nra. >> so, here is a magazine for ammunition that carries 30 bullets. now, isn't it possible that if we got rid of these, if we replaced them and said, well, you can only have a magazine that carries five bullets or ten bullets, isn't it just possible that we could reduce the carnage in a situation like newtown? >> i don't believe that